From 1dfca76c8160baab4214761ecc32b80cb717b7e4 Mon Sep 17 00:00:00 2001
From: Wendelin <12148533+wendevlin@users.noreply.github.com>
Date: Wed, 5 Nov 2025 14:48:18 +0100
Subject: [PATCH] Fix assist conversation language picker (#27764)

---
 .../assist-pipeline-detail-conversation.ts      | 17 ++++++++++++++---
 .../dialog-voice-assistant-pipeline-detail.ts   |  2 +-
 2 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/src/panels/config/voice-assistants/assist-pipeline-detail/assist-pipeline-detail-conversation.ts b/src/panels/config/voice-assistants/assist-pipeline-detail/assist-pipeline-detail-conversation.ts
index dac5f01850..5749aa607e 100644
--- a/src/panels/config/voice-assistants/assist-pipeline-detail/assist-pipeline-detail-conversation.ts
+++ b/src/panels/config/voice-assistants/assist-pipeline-detail/assist-pipeline-detail-conversation.ts
@@ -109,15 +109,26 @@ export class AssistPipelineDetailConversation extends LitElement {
   }
 
   private _supportedLanguagesChanged(ev) {
-    if (ev.detail.value === "*") {
+    this._supportedLanguages = ev.detail.value;
+
+    if (
+      this._supportedLanguages === "*" ||
+      !this._supportedLanguages?.includes(
+        this.data?.conversation_language || ""
+      ) ||
+      !this.data?.conversation_language
+    ) {
       // wait for update of conversation_engine
       setTimeout(() => {
         const value = { ...this.data };
-        value.conversation_language = "*";
+        if (this._supportedLanguages === "*") {
+          value.conversation_language = "*";
+        } else {
+          value.conversation_language = this._supportedLanguages?.[0] ?? null;
+        }
         fireEvent(this, "value-changed", { value });
       }, 0);
     }
-    this._supportedLanguages = ev.detail.value;
   }
 
   static styles = css`
diff --git a/src/panels/config/voice-assistants/dialog-voice-assistant-pipeline-detail.ts b/src/panels/config/voice-assistants/dialog-voice-assistant-pipeline-detail.ts
index 9786c6a89b..5a65b3d96b 100644
--- a/src/panels/config/voice-assistants/dialog-voice-assistant-pipeline-detail.ts
+++ b/src/panels/config/voice-assistants/dialog-voice-assistant-pipeline-detail.ts
@@ -214,7 +214,7 @@ export class DialogVoiceAssistantPipelineDetail extends LitElement {
         <ha-button
           slot="primaryAction"
           @click=${this._updatePipeline}
-          .disabled=${this._submitting}
+          .loading=${this._submitting}
           dialogInitialFocus
         >
           ${this._params.pipeline?.id